Hot and cold water service systems - design properties, capacities, sizing and more.
DFU are used to calculate the drainage flow from fixtures and the required capacities of sewer service systems.
Vents in draining systems protects traps against pressure differences that could cause them to siphon or blow out .
Drainage Fixture Units (DFU) connected to building drains and sewers.
Minimum pitch of horizontal drainage pipes.
Maximum Drainage Fixture Unit - DFU - loads in sanitary piping systems.
Carrying capacities of sewer and wastewater pipes - gpm and liter per second.
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